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  <title>Returns the bit fail limit used during training</title>

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 <div class="refnamediv">
  <h1 class="refname">fann_get_bit_fail_limit</h1>
  <p class="verinfo">(PECL fann &gt;= 1.0.0)</p><p class="refpurpose"><span class="refname">fann_get_bit_fail_limit</span> &mdash; <span class="dc-title">Returns the bit fail limit used during training</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.fann-get-bit-fail-limit-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">float</span> <span class="methodname"><strong>fann_get_bit_fail_limit</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$ann</code></span>
   )</div>

  <p class="para rdfs-comment">
   Returns the bit fail limit used during training.
  </p>
  <p class="para">
   The bit fail limit is used during training where the <a href="fann.constants.html#constants.fann-stopfunc" class="link">stop function</a>
   is set to <strong><code>FANN_STOPFUNC_BIT</code></strong>.
  </p>
  <p class="para">
   The limit is the maximum accepted difference between the desired output and the actual output during training.
   Each output that diverges more than this limit is counted as an error bit. This difference is divided by two
   when dealing with symmetric activation functions, so that symmetric and not symmetric activation functions
   can use the same limit.
  </p>
  <p class="para">
   The default bit fail limit is 0.35.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.fann-get-bit-fail-limit-parameters">
  <h3 class="title">参数</h3>
  <dl>

   
    <dt>
<em><code class="parameter">ann</code></em></dt>

    <dd>

     <p class="para">Neural network <span class="type"><a href="language.types.resource.html" class="type resource">resource</a></span>.</p>
    </dd>

   
  </dl>

 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.fann-get-bit-fail-limit-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   The bit fail limit, or <strong><code>FALSE</code></strong> on error.
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.fann-get-bit-fail-limit-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.fann-set-bit-fail-limit.html" class="function" rel="rdfs-seeAlso">fann_set_bit_fail_limit()</a> - Set the bit fail limit used during training</span></li>
   </ul>
  </p>
 </div>



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